clear and matte Thermal Transfer PET film (Polyester Film) has good printability, excellent dimensional stability, good surface and barrier properties. clear thermal transfer PET film (polyester film) thickness is 16,18,19 micron, and matt thermal transfer PET film (polyester film regular thickness is 19 micron ,23 micron PET film (Polyester Film) is used successfully in a wide range of applications, due to its excellent combination of optical, physical, mechanical, thermal, and chemical properties, as well as its unique versatility.Characteristics:1). Optically brilliant, clear appearance2). Unequaled mechanical strength and toughness3). Excellent dielectric properties4). Good flatness and coefficient of friction (COF)5). Tear-resistant and puncture-resistant characteristics6). Excellent dimensional stability over a wide range of temperatures7). Very good resistance to most common solvents, moisture, oil, and grease8). Excellent barrier against a wide range of gases.9). Widely use for packaging, printing, laminating, metallizing, decroation, electrical insulation.